Swift Package IndexBuild Information
Successful build of RelativeCollections, reference main (1823a4), with Swift 6.3 for macOS (SPM) on 16 Apr 2026 00:13:32 UTC.
Swift 6 data race errors: 0
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64Build Log
========================================
RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/ChimeHQ/RelativeCollections.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/ChimeHQ/RelativeCollections
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 1823a41 Make RelativeArray Sendable
Cloned https://github.com/ChimeHQ/RelativeCollections.git
Revision (git rev-parse @):
1823a416259c481f68accd4bc7f6a781cc888662
SUCCESS checkout https://github.com/ChimeHQ/RelativeCollections.git at main
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
"identity": ".resolve-product-dependencies",
"name": "resolve-dependencies",
"url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
"traits": [
"default"
],
"dependencies": [
{
"identity": "relativecollections",
"name": "RelativeCollections",
"url": "https://github.com/ChimeHQ/RelativeCollections.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/RelativeCollections",
"traits": [
"default"
],
"dependencies": [
]
}
]
}
Fetching https://github.com/ChimeHQ/RelativeCollections.git
[1/307] Fetching relativecollections
Fetched https://github.com/ChimeHQ/RelativeCollections.git from cache (0.73s)
Creating working copy for https://github.com/ChimeHQ/RelativeCollections.git
Working copy of https://github.com/ChimeHQ/RelativeCollections.git resolved at main (1823a41)
warning: '.resolve-product-dependencies': dependency 'relativecollections' is not used by any target
Found 0 product dependencies
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Build
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Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/ChimeHQ/RelativeCollections.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version--6988338F2F200930.txt
[4/9] Compiling RelativeCollectionsInternal SkipList.swift
[5/9] Compiling RelativeCollectionsInternal Collection+RangeQuery.swift
[6/9] Compiling RelativeCollectionsInternal Collection+Halve.swift
[7/9] Emitting module RelativeCollectionsInternal
[8/9] Compiling RelativeCollectionsInternal Collection+BinarySearch.swift
[9/9] Compiling RelativeCollectionsInternal RandomAccessCollection+Safe.swift
[10/13] Compiling RelativeCollections RelativeList+Node.swift
/Users/admin/builder/spi-builder-workspace/Sources/RelativeCollections/RelativeList+Node.swift:74:12: warning: capture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode [#SendableMetatypes]
72 | let config = Storage.Configuration(
73 | initial: NodeWeight(count: 0, weight: configuration.initial),
74 | add: { NodeWeight(count: $0.count + $1.count, weight: add($0.weight, $1.weight)) },
| `- warning: capture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode [#SendableMetatypes]
75 | subtract: { NodeWeight(count: $0.count - $1.count, weight: sub($0.weight, $1.weight)) }
76 | )
/Users/admin/builder/spi-builder-workspace/Sources/RelativeCollections/RelativeList+Node.swift:75:17: warning: capture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode [#SendableMetatypes]
73 | initial: NodeWeight(count: 0, weight: configuration.initial),
74 | add: { NodeWeight(count: $0.count + $1.count, weight: add($0.weight, $1.weight)) },
75 | subtract: { NodeWeight(count: $0.count - $1.count, weight: sub($0.weight, $1.weight)) }
| `- warning: capture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode [#SendableMetatypes]
76 | )
77 |
[#SendableMetatypes]: <https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes>
[11/13] Compiling RelativeCollections RelativeList.swift
/Users/admin/builder/spi-builder-workspace/Sources/RelativeCollections/RelativeList.swift:155:8: warning: variable 'branchEntry' was never mutated; consider changing to 'let' constant
153 | }
154 |
155 | var branchEntry = branch.storage[entryIndex]
| `- warning: variable 'branchEntry' was never mutated; consider changing to 'let' constant
156 | let subNode = branchEntry.value
157 | let adjustedTarget = target - branchEntry.dependency.count
[12/13] Emitting module RelativeCollections
[13/13] Compiling RelativeCollections RelativeArray.swift
/Users/admin/builder/spi-builder-workspace/Sources/RelativeCollections/RelativeArray.swift:74:19: warning: capture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode [#SendableMetatypes]
72 | public init() {
73 | self.initial = Weight.zero
74 | self.add = { $0 + $1 }
| `- warning: capture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode [#SendableMetatypes]
75 | self.subtract = { $0 - $1 }
76 | }
/Users/admin/builder/spi-builder-workspace/Sources/RelativeCollections/RelativeArray.swift:75:24: warning: capture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode [#SendableMetatypes]
73 | self.initial = Weight.zero
74 | self.add = { $0 + $1 }
75 | self.subtract = { $0 - $1 }
| `- warning: capture of non-Sendable type 'Weight.Type' in an isolated closure; this is an error in the Swift 6 language mode [#SendableMetatypes]
76 | }
77 | }
[#SendableMetatypes]: <https://docs.swift.org/compiler/documentation/diagnostics/sendable-metatypes>
Build complete! (5.68s)
Build complete.
{
"dependencies" : [
],
"manifest_display_name" : "RelativeCollections",
"name" : "RelativeCollections",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
],
"products" : [
{
"name" : "RelativeCollections",
"targets" : [
"RelativeCollections"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "RelativeCollectionsTests",
"module_type" : "SwiftTarget",
"name" : "RelativeCollectionsTests",
"path" : "Tests/RelativeCollectionsTests",
"sources" : [
"RelativeArrayTests.swift",
"RelativeListTests.swift"
],
"target_dependencies" : [
"RelativeCollections"
],
"type" : "test"
},
{
"c99name" : "RelativeCollectionsInternalTests",
"module_type" : "SwiftTarget",
"name" : "RelativeCollectionsInternalTests",
"path" : "Tests/RelativeCollectionsInternalTests",
"sources" : [
"BinarySearchTests.swift",
"SkipListTests.swift"
],
"target_dependencies" : [
"RelativeCollectionsInternal"
],
"type" : "test"
},
{
"c99name" : "RelativeCollectionsInternal",
"module_type" : "SwiftTarget",
"name" : "RelativeCollectionsInternal",
"path" : "Sources/RelativeCollectionsInternal",
"product_memberships" : [
"RelativeCollections"
],
"sources" : [
"Collection+BinarySearch.swift",
"Collection+Halve.swift",
"Collection+RangeQuery.swift",
"RandomAccessCollection+Safe.swift",
"SkipList.swift"
],
"type" : "library"
},
{
"c99name" : "RelativeCollections",
"module_type" : "SwiftTarget",
"name" : "RelativeCollections",
"path" : "Sources/RelativeCollections",
"product_memberships" : [
"RelativeCollections"
],
"sources" : [
"RelativeArray.swift",
"RelativeList+Node.swift",
"RelativeList.swift"
],
"target_dependencies" : [
"RelativeCollectionsInternal"
],
"type" : "library"
}
],
"tools_version" : "5.10"
}
Done.